CVE-2012-4969

Microsoft Internet Explorer Use-After-Free

8.1 HIGHActively exploited (CISA KEV)EPSS 80.3%

Published18 Sept 2012
Added to CISA KEV8 Jun 2022
Remediation due22 Jun 2022

Description

Use-after-free vulnerability in the CMshtmlEd::Exec function in mshtml.dll in Microsoft Internet Explorer 6 through 9 allows remote attackers to execute arbitrary code via a crafted web site, as exploited in the wild in September 2012.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityHigh

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Microsoft Internet Explorer6 · 7 · 8 · 9

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

http://technet.microsoft.com/security/advisory/2757760

References

http://blog.vulnhunt.com/index.php/2012/09/17/ie-execcommand-fuction-use-after-free-vulnerability-0day_en/Broken Link
http://dev.metasploit.com/redmine/projects/framework/repository/entry/modules/exploits/windows/browser/ie_execcommand_uaf.rbBroken Link
http://eromang.zataz.com/2012/09/16/zero-day-season-is-really-not-over-yet/Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A15729Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2012-4969US Government Resource
http://technet.microsoft.com/security/advisory/2757760PatchVendor Advisory
http://www.kb.cert.org/vuls/id/480095Third Party AdvisoryUS Government Resource
http://www.securitytracker.com/id?1027538Third Party AdvisoryVDB Entry
http://www.securityweek.com/new-internet-explorer-zero-day-being-exploited-wildThird Party Advisory
http://www.us-cert.gov/cas/techalerts/TA12-255A.htmlThird Party AdvisoryUS Government Resource

and 2 more references

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2012-4969 being actively exploited?

Yes. CVE-2012-4969 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 8 Jun 2022.

How severe is CVE-2012-4969?

CVE-2012-4969 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 80.3% probability of exploitation.

Which products are affected by CVE-2012-4969?

Affected products include Microsoft Internet Explorer.

How do I fix CVE-2012-4969?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2012-4969 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.